.booksScan .header{
  height: 40px;
  line-height: 40px;
  font-size: 18px;
  text-align: center;
}
.booksScan .header img{
    float: left;
    height: 18px;
    margin: 6px 0 0;
}
.booksScan .mask{
  width: 100%;
  height: 627px;
  background-color: rgba(0,0,0,0.5);
  position: fixed;
  top: 40px;
  z-index: 2;
}
.booksScan .mask .region{
  background-color: rgba(255, 255, 255, 0.3);
  width: 190px;
  height: 190px;
  position: relative;
  left: 92.5px;
  top: 200px;
  overflow: hidden;
}
.booksScan .mask .region .pointer{
  margin: 15px;
  width: 160px;
  height: 160px;
}
.booksScan .mask .region .pointer .move{
  width: 100%;
  height: 1px;
  border-radius: 1px;
  /* background-color: #1ec695; */
  /* box-shadow: 0 0 1px 1px rgba(30 ,198 ,149 , 0.6); */
  animation: hd 1.8s infinite linear;
}
@keyframes hd {
  0%{
    background-color: transparent;
    box-shadow: 0 ;
  }
  4.9%{
    background-color: transparent;
    box-shadow: 0 ;
  }
  5%{
    margin-top: 0px;
    background-color: #1ec695;
    box-shadow: 0 0 1px 2px rgba(30 ,198 ,149 , 0.6);
  }
  100%{
    margin-top: 160px; 
    background-color: #1ec695;
    box-shadow: 0 0 1px 2px rgba(30 ,198 ,149 , 0.6);
  }
}

.video{
  width: 100%;
  height: 627px;
}